Simon O'Callaghan

Bib: 31867 M IE

0:00

0:00

/ mi

Be the first to cheer!

Overall

#0 / 59786

Gender (Male)

#0 / 33594

Division (M18-39)

#0 / 16712

Race Day Weather

56°/46°F

overcast clouds

Race Timeline

Ribbon color based on

FasterSteadySlower· vs. your average pace

Start

0:00

Race begins

131 ft elev

5K· 3.11 mi

10:36/mi

32:55

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

10:56/mi

1:06:51

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

11:16/mi

1:41:50

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

10:50/mi

2:15:29

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

11:20/mi

2:23:05

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

11:19/mi

2:50:37

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

11:46/mi

3:27:10

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

12:52/mi

4:07:06

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

13:30/mi

4:49:01

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

12:04/mi

5:05:28

↑ 14 ft↓ 18 ft

19 ft elev

Course Elevation

503ft

Total climb

166ft

Range

6 to 172 ft

613ft

Total descent

About the height of the Statue of Liberty

See every mile of your race

Claim this result to add your watch's GPX and unlock per-mile pace, heart rate, and grade — mile by mile on this timeline.

Works with Garmin, Apple Watch, Strava, COROS, Suunto & more.

The Course

Half Splits

1st Half· via Half

2:23:0510:56 /mi⚡ faster

2nd Half

2:42:2312:23 /mi+13.5%

Positive split — 13.5% slower in the second half

AI Race Performance Report

Simon's race, broken down like a coach

The full Race Story, performance analysis, segment & passing breakdowns, and where the race turned. Free to unlock — for anyone.

Free account · no payment

Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
5K	32:55	10:36	3.11 mi	32:55	10:36	-
10K	1:06:51	10:46	3.10 mi	33:56	10:56	+0:20
15K	1:41:50	10:56	3.11 mi	34:59	11:16	+0:20
20K	2:15:29	10:55	3.11 mi	33:39	10:50	-0:26
Half(13.10 mi)	2:23:05	10:56	0.67 mi	7:36	11:20	+0:30
25K	2:50:37	10:59	2.43 mi	27:32	11:19	-0:01
30K	3:27:10	11:07	3.11 mi	36:33	11:46	+0:27
35K	4:07:06	11:22	3.11 mi	39:56	12:52	+1:06
40K	4:49:01	11:38	3.10 mi	41:55	13:30	+0:38
Finish(26.22 mi)	5:05:28	11:40	1.37 mi	16:27	12:04	-1:26

Trend:

Faster pace

Steady pace

Slower pace

More below

See the rest of Simon's race

Checkpoint splits, rankings, passing analysis and qualifying. One free sign-in reveals them here — and on every race you look up.

Checkpoints & Pacing

Pace Line

Fastest Pace

10:36 /mi

Average Pace

11:40 /mi

Slowest Pace

13:30 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

1:06:34

22% of race

Time at Steady Pace

2:20:36

46% of race

Time at Slower Pace

1:38:18

32% of race

Average Pace: 11:39 /mi

Loading chart...

Faster pace (< avg)

Steady pace (≈ avg)

Slower pace (> avg)

Heatmap

0mi6.6mi13.1mi19.7mi26.2mi

Pace:

Faster

Steady

Slower

Checkpoint and Segment Rankings

Checkpoint	Seg. Dist	Overall	Males	M18-39	Seg. Overall	Seg. Males	Seg. M18-39
5K	3.11 mi	44677	28579	28579	43641	28053	28053
10K	3.10 mi	44748-71	28595-16	28595-16	44969	28652	28652
15K	3.11 mi	44271+477	28396+199	28396+199	43641	28053	28053
20K	3.11 mi	43107+1164	27812+584	27812+584	40454	26362	26362
Half(13.10 mi)	0.67 mi	42946+161	27708+104	27708+104	41383	26523	26523
25K	2.43 mi	42009+937	27184+524	27184+524	38972	25211	25211
30K	3.11 mi	40990+1019	26514+670	26514+670	37601	24029	24029
35K	3.11 mi	40811+179	26195+319	26195+319	39985	24592	24592
40K	3.10 mi	41614-803	26404-209	26404-209	45301	26898	26898
Finish(26.22 mi)	1.37 mi	41528+86	26306+98	26306+98	40208	24414	24414

24414

Passing Analysis

No position changes recorded for this athlete.

All Results

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Enhanced athlete results built from publicly available data.

Race managed by

London Marathon Events

Race timed by

Mika Timing